For now we just put one partition per drive. We found most owners get too confused with multiple partitions.
I'm leaning toward the 64GB OCZ Core as the primary boot/system drive for my new PC, but I go to thinking if 64GB is sufficient space for Vista. I assume this should be plenty as my current 100GB drive running XP Pro is only about half full including several gigs of pics and the like in My Documents, but just wanted to check. The plan is to pair the OCZ drive with a WD Caviar Black 1TB storage drive, part of which will be devoted to a Ghost partition for backing up the SSD.